UBUNTU-CVE-2019-18680
Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 04 Nov 2019, 15:15
Last modified:03 Jun 2026, 13:33
Vulnerability Summary
Overall Risk (default)
medium
30/100 CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
04 Nov 2019, 15:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated
Description
An issue was discovered in the Linux kernel 4.4.x before 4.4.195. There is a NULL pointer dereference in rds_tcp_kill_sock() in net/rds/tcp.c that will cause denial of service, aka CID-91573ae4aed0.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Systems
- ubuntu•linux
< 4.4.0-168.197
- ubuntu•linux-aws
< 4.4.0-1058.62 | < 4.4.0-1098.109
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1025.30 | all
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gke
all
- ubuntu•linux-hwe-edge
all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1062.69
- ubuntu•linux-lts-xenial
< 4.4.0-168.197~14.04.1
- ubuntu•linux-nvidia
all
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1125.134
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1129.137
References (6)
- https://ubuntu.com/security/CVE-2019-18680
- https://lkml.org/lkml/2019/9/18/337
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.195
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=91573ae4aed0a49660abdad4d42f2a0db995ee5e
- https://github.com/torvalds/linux/commit/91573ae4aed0a49660abdad4d42f2a0db995ee5e
- https://www.cve.org/CVERecord?id=CVE-2019-18680